Harrow.



C. ORSI-IARD'.

HARROW.

APPLICATION FILED SEPT. 25 I9I6.

I a @L f 9 a www Ism d fw @Wm Mfwm VA /U Mm NM@ Q a A mw y w@ m .m U. a I" C. ORGAARD.

HARROW.

APPLICATION FILED 55H26. 1916.

atente Nov, i9?? 4. SHEETS-SHEET 2.

f E e C. ORGAARD. HARROW.

I APPLICATION FILED SEPT. 26. |916- ,245,261

.Patented Non 6, 191?.

4. SHEETS-SHEET 3.

C. RGAARD.

HARHOW.

APPLlCATlON FILED SEPT-26. 1916.

Patente Nov. 5, mi?.

4 SHEETSSHEET 4.

ZAP@ A nNiTan sTATns PATENT carica.

naar caesaer, or WHEELQGK. NORTH .n.AKrA.

'Hannow Patented Nov- .6., .191%

Application filed September 265.1916. -Seria1 No. 122,215.

To all who/fa z'fmaylconcevm:

Be it known that LgCnnLlOneaAnma Citizen ofthe United States, and a. resident of Vheelock, county .of lYilliams, .and ,State of North Dakota, have vinventf-:d certain new and ,useful Improvements lin VHai-rows, of which the following lis .a specification.

-hy invention relates to improvements in harrowsand .has for itsobjectthe provision of an improved construction of this .character of simple Aconstructionand highly eilicient in .use

The l:invention consists in theoombinations and arrangements of :parts hereinafter .described vand claimed.

'I he invention will be best .understood by reference to the accompanying .drawings forming a .part of 4,this specification, Yand in which,

Figure l vis a topplan view of a -harrovv embodying Imy invention,

Fig. 2, .a :top plan view (5f-.one of a ,plurality of barrow sections `employedfin the construction,

Fig. 3, va @longitudinal section taken through one of the barrow sections,

Fig. 4, .a section taken -on Aline of Fig. 3,

Fig. 5, an enlarged section taken .onli-ne Fig. 6, ra vertiealfsection through v,one ,of the lharrow sections, Ataken Vjust forward of the -rear end,

Figuf, a 'rear View of one .of lthe harrow sections,

Fig. J8, a 4detail view illustrating the mounting of the harrow lteeth,

Fig. l9, fa detail View illustrating the mounting of :elevatingkWheels employed .on the har-row, and

Fig. 10, a detailview illustrating one of a. plurality of supporting brackets employed in the construction.

The preferred form of construction, as illustrated in the drawings, comprises a harrow `made up of a pluralityhof harrow frame sections, each of said sections consisting Vof two side bars 11 having cross channel bars 12 pivotally mounted at 12 therein. Chains 13 and 14 are connected with the forward ends of the side bars of the harrow frame sections and with a draft beam 15 having eveners 16 thereon for draft purposes. A rectangular supporting frame 17 is posi- 55 tioned over each of the harrovv sections, be-

ing supported on the cross bars 12 by means 0f vsupporting brackets .18 and .being .pivf

leverQQ ,is fixed .toeach of the shafts 19and is vprovided with a spring-:held locking .-dog- 23 -coperating avith .a notched segment :24 fixed Ato the corresponding `frame 17, said locking dog Q3 being .manipulated by meansof a lhandle 'lever 25 on .the leverQQ, vwhereby said Jever may be locked .in either of .its/adj usted positions. 'Each .of .the shafts 419 carries an .oscillating `arm 26 having a bracket 27 .pivot-.ally ,mounted at .its free endeand carrying a caster wheel 28. .'Each .of the arms 126 is .provid-ed avithstop shoulders Q9 and 30 arranged to limit fthe swing of .the bracket -27 asrbestzshown in iFign9. Each ofthe armsQG is provided witha segmental gear :31 .meshing `.with a segmental fgear 32 fixed 'to a .shaft 33 .in :the corresponding frame 17.v Each `of ,the .segmental gears 33 is carried .by an .oscillating varm 4r34 provided with a caster .Wheel 35 identical with the caster `wheel 2S. By this arrangement,.it will be observed, that -upon loscillation .of any one of Vthe. shafts 19 by .means of the corresponding .lever Q2, :the corresponding casterzwheels Q8 andi-35 and the armQO will be operated .toelevate orfdepress the cor-V responding barrow section morder to facili- Eachiof the ygears 37 "is provided withitwo segmental bearing .members 38 :diametrically arranged and provided with segmental bearingslots 39 adapted to receive pins 40 fixed to .theicorresponding shaft ,119. Airack.

bar 41 is arranged to slide in a guide houstate the passage of thosame.overlthegronnd ing 42 and in mesh "with the corresponding :segmental gear 37, the lower end of each of the rack bars 41 having a slot and pin connection 43 with the inner ends of two operating levers 44 pivoted to brackets 45 and having slot and pin connections 46 at their outer ends with an operating bar 47 are ranged over the corresponding cross bar 12. The harrow teeth 48 are made square in cross section and are mounted to slide vertically in square holes provided in the sides of the channel bars 12, the upper end of each of the teeth 48 being pivoted at L19 to the corresponding operating bar 47. The arrangement is such that upon rotation of any one of the shafts 19 to elevate the harrow frame, the harrow teeth will be simultaneously elevated or retracted so as to further facilitate the movements of the harrow and also facilitate the avoidance of entanglement with weeds and the like, when desired.

A second operating lever 50 is pivotally mounted at 51 on each of the frames 17 and carries a spring held locking dog 52 operzble by means of a hand lever 53 and cooperating with a notched segment 54: secured to the corresponding frame 17. A channel guide member 55 is pivotally mounted on the corresponding bracket 1S and slidably engages the lever 50, as indicated. The arrangement is such that when desired the operating lever 50 on any one or all of the frames 17 may be tilted forwardly or rearwardly, said forward or rearward tilting of said lever serving also to tilt the corresponding cross bars 1:2 and consequently tilt the corresponding teeth ,48 to further facilitate the passage of the harrow teeth when desired and also permit of tilting adjustments of said teeth in actual harrowing7 when desired. The tilting of the harrow teeth, as above described, results in a forward and downward swinging of thecorresponding lframe 17 which necessitates relative move ment between the shaft 19 and the corresponding gears 37, such relative movement being permitted by the form of engagement between the ping 40 and the slots 39, as will be readily understood.

Vhile I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the. precise details of constructionv set forth, but desire'to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A harrow comprising a frame; retractible and tiltable teeth on said frame; and

means for simultaneously retracting and tilting said teeth, substantially as described.

2. A harrow comprising a frame retractible and tiltable teeth on said frame; means for simultaneously retracting and tilting said teeth; and means for elevating or depressing said frame, substantially as described.

3. A harrow comprising a plurality of detachable harrow sections, each of said sections comprising a frame; retractible teeth on said frame pand means for retracting said teeth, substantially as described.

4l. A harrow comprising a plurality of detachable sections, each of said sections comprising a frame; retractible teeth on said frame; and means for simultaneously retracting said teeth, substantially as described.

5. A harrow comprising a plurality of detachable sections, each of said sections comprising a frame; retractible and tiltable teeth on said frame; and means for simultaneously retracting and tilting said teeth, substantially as described.

6. A harrow comprising a plurality of del tacliable harrow sections, each comprising aY frame; a draft beam detachably connected with each of said frames; draft means on said draft beams; pivotally mountedchannel bars on each of' said frames;-harrow teeth slidably mounted in said cross bars; and means for simultaneously retracting said teeth and tilting said cross bars, substantially as described.

7. A harrow comprising a plurality of detachable harrow sections, each comprising a frame; a draft beam detachably connected with each of said frames; draft meanson said draft beams; pivotally mounted channel bars on each of said frames; harrow teeth slidably mounted in said cross bars;V

means for simultaneously retracting said teeth and tilting said cross bars; and means for elevating or depressing said frame, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

` CARL ORGAARD.

Vitnesses: v

H. B. WINGERD, i H. R. LoMEN.

Copies of this patent mav be obtained for ve cents each, by addressing the Commissioner of Patents,

i Washington, D. C. 

